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Finding the Fourth Proportional to 73,590.56, 110,353.08 and 20,987.76

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Solution

The fourth proportional to 73,590.56, 110,353.08 and 20,987.76 is: 31,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,590.56 : 110,353.08 = 20,987.76 : x
  2. Step 2: Convert to fraction form
    73,590.56/110,353.08 = 20,987.76/x
  3. Step 3: Cross multiply
    73,590.56x = 110,353.08 × 20,987.76
  4. Step 4: Simplify right side
    73,590.56x = 2,316,063,958.30
  5. Step 5: Solve for x
    x = 2,316,063,958.30/73,590.56
  6. Step 6: Final answer
    x = 31,472.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.